1# This mimics the top-level Makefile. We do it explicitly here so that this 2# Makefile can operate with or without the kbuild infrastructure. 3ifneq ($(LLVM),) 4ifneq ($(filter %/,$(LLVM)),) 5LLVM_PREFIX := $(LLVM) 6else ifneq ($(filter -%,$(LLVM)),) 7LLVM_SUFFIX := $(LLVM) 8endif 9 10CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi 11CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu 12CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl 13CLANG_TARGET_FLAGS_i386 := i386-linux-gnu 14CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu 15CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu 16CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu 17CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu 18CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu 19CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu 20CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu 21CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH)) 22 23ifeq ($(CROSS_COMPILE),) 24ifeq ($(CLANG_TARGET_FLAGS),) 25$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk) 26else 27CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) 28endif # CLANG_TARGET_FLAGS 29else 30CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) 31endif # CROSS_COMPILE 32 33CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as 34else 35CC := $(CROSS_COMPILE)gcc 36endif # LLVM 37 38ifeq (0,$(MAKELEVEL)) 39 ifeq ($(OUTPUT),) 40 OUTPUT := $(shell pwd) 41 DEFAULT_INSTALL_HDR_PATH := 1 42 endif 43endif 44selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) 45top_srcdir = $(selfdir)/../../.. 46 47ifeq ($(KHDR_INCLUDES),) 48KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include 49endif 50 51# The following are built by lib.mk common compile rules. 52# TEST_CUSTOM_PROGS should be used by tests that require 53# custom build rule and prevent common build rule use. 54# TEST_PROGS are for test shell scripts. 55# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests 56# and install targets. Common clean doesn't touch them. 57# TEST_GEN_MODS_DIR is used to specify a directory with modules to be built 58# before the test executes. These modules are cleaned on the clean target as well. 59TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 60TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 61TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 62TEST_GEN_MODS_DIR := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_MODS_DIR)) 63 64all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \ 65 $(if $(TEST_GEN_MODS_DIR),gen_mods_dir) 66 67define RUN_TESTS 68 BASE_DIR="$(selfdir)"; \ 69 . $(selfdir)/kselftest/runner.sh; \ 70 if [ "X$(summary)" != "X" ]; then \ 71 per_test_logging=1; \ 72 fi; \ 73 run_many $(1) 74endef 75 76run_tests: all 77ifdef building_out_of_srctree 78 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)$(TEST_GEN_MODS_DIR)" != "X" ]; then \ 79 rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(TEST_GEN_MODS_DIR) $(OUTPUT); \ 80 fi 81 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 82 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 83 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 84 else \ 85 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 86 fi 87else 88 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 89endif 90 91gen_mods_dir: 92 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) 93 94clean_mods_dir: 95 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean 96 97define INSTALL_SINGLE_RULE 98 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 99 $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/) 100endef 101 102define INSTALL_MODS_RULE 103 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)/$(INSTALL_LIST)) 104 $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST)/*.ko $(INSTALL_PATH)/$(INSTALL_LIST)) 105endef 106 107define INSTALL_RULE 108 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 109 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 110 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 111 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 112 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 113 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 114 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 115 $(eval INSTALL_LIST = $(notdir $(TEST_GEN_MODS_DIR))) $(INSTALL_MODS_RULE) 116 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 117endef 118 119install: all 120ifdef INSTALL_PATH 121 $(INSTALL_RULE) 122else 123 $(error Error: set INSTALL_PATH to use install) 124endif 125 126emit_tests: 127 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 128 BASENAME_TEST=`basename $$TEST`; \ 129 echo "$(COLLECTION):$$BASENAME_TEST"; \ 130 done 131 132# define if isn't already. It is undefined in make O= case. 133ifeq ($(RM),) 134RM := rm -f 135endif 136 137define CLEAN 138 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 139endef 140 141clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_dir) 142 $(CLEAN) 143 144# Enables to extend CFLAGS and LDFLAGS from command line, e.g. 145# make USERCFLAGS=-Werror USERLDFLAGS=-static 146CFLAGS += $(USERCFLAGS) 147LDFLAGS += $(USERLDFLAGS) 148 149# When make O= with kselftest target from main level 150# the following aren't defined. 151# 152ifdef building_out_of_srctree 153LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 154COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 155LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 156endif 157 158# Selftest makefiles can override those targets by setting 159# OVERRIDE_TARGETS = 1. 160ifeq ($(OVERRIDE_TARGETS),) 161LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 162$(OUTPUT)/%:%.c $(LOCAL_HDRS) 163 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 164 165$(OUTPUT)/%.o:%.S 166 $(COMPILE.S) $^ -o $@ 167 168$(OUTPUT)/%:%.S 169 $(LINK.S) $^ $(LDLIBS) -o $@ 170endif 171 172.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir 173